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STOCKHOLDERS' EQUITY (Remaining Warrants) (Details) - USD ($)
$ / shares in Units, $ in Thousands
1 Months Ended 3 Months Ended 9 Months Ended
Apr. 30, 2018
Sep. 30, 2018
Sep. 30, 2018
Aug. 31, 2018
Feb. 28, 2018
Dec. 31, 2017
Class of Stock [Line Items]            
Class of warrant, number of securities called by warrants   9,261,896 9,261,896      
Loss on extinguishment of debt and induced conversion of convertible bridge notes   $ 112 $ 1,040      
Creditor Warrants Relating to Secured Debt [Member]            
Class of Stock [Line Items]            
Class of warrant, number of securities called by warrants         108,112 108,112
Warrants, exercise price per share         $ 7.50  
April 2018 Warrants [Member]            
Class of Stock [Line Items]            
Stock rights issued (in shares) 3,648,352 2,945,055        
Warrants, exercise price per share $ 0.75 $ 0.50 $ 0.50      
Warrants, fair value $ 1,100 $ 700 $ 700      
April 2018 Warrants, First Half [Member]            
Class of Stock [Line Items]            
Class of warrant or right, term   5 years 5 years      
April 2018 Warrants, Second Half [Member]            
Class of Stock [Line Items]            
Class of warrant or right, term   1 year 1 year      
Advisor Warrants [Member]            
Class of Stock [Line Items]            
Stock rights issued (in shares) 232,000          
Warrants, fair value $ 100          
Class of warrant or right, term   4 years        
Quarter 3 2018 Warrants [Member]            
Class of Stock [Line Items]            
Stock rights issued (in shares)   2,945,055        
Note Agreement 2018 [Member]            
Class of Stock [Line Items]            
Warrants, exercise price per share $ 0.30          
Note Agreement 2018 [Member] | April 2018 Warrants, First Half [Member]            
Class of Stock [Line Items]            
Class of warrant or right, term   1 year        
Note Agreement 2018 [Member] | April 2018 Warrants, Second Half [Member]            
Class of Stock [Line Items]            
Class of warrant or right, term   5 years        
Note Agreement 2018 [Member] | Advisor Warrants [Member]            
Class of Stock [Line Items]            
Stock rights issued (in shares) 232,000          
Warrants, exercise price per share $ 0.75          
Warrants, fair value $ 100          
Convertible Debt [Member] | Quarter 3 2018 Warrants [Member]            
Class of Stock [Line Items]            
Class of warrant, number of securities called by warrants   2,945,055 2,945,055      
Warrants, exercise price per share   $ 0.50 $ 0.50 $ 0.75    
Warrants, fair value   $ 700 $ 700      
Loss on extinguishment of debt and induced conversion of convertible bridge notes     $ 100      
Convertible Debt [Member] | Q3 2018 Warrants, First Half [Member]            
Class of Stock [Line Items]            
Class of warrant or right, term     5 years      
Convertible Debt [Member] | Q3 2018 Warrants, Second Half [Member]            
Class of Stock [Line Items]            
Class of warrant or right, term     1 year